Recommended reading for next lecture (October 13)

Next lecture (October 13) we'll start looking at the details of asymmetric cryptography, which was already hinted at in last week's guest lecture.  From [BR] I recommend to read Chapter 9 (minus Section 9.4) and Chapter 10.1-Chapter 10.2. This material may feature some mathematics you might not have seen before, namely group theory, hence I strongly recommend you to read it carefully. 

Group theory is a really fascinating and deep subject, with an enormous number of connections to other parts of mathematics. If you want a more high-level and conceptual introduction to group theory, I highly recommend you to watch the following incredible presentation of the topic: https://www.youtube.com/watch?v=mvmuCPvRoWQ